<template>
  <div class="goodsinfo-container">
    <transition @before-enter="beforeEnter" @enter="enter" @after-enter="afterEnter">
      <div class="ball" v-show="ballFlag" ref="ball"></div>
    </transition>

    <!-- 商品轮播图区域 -->
    <div class="mui-card">
      <div class="mui-card-content">
        <div class="mui-card-content-inner">
          <swiper :lunbotuList="lunbotu" :isFull="false"></swiper>
        </div>
      </div>
    </div>
    <!-- 商品购买区域 -->
    <div class="mui-card">
      <div class="mui-card-header">{{goodsinfo.title}}</div>
      <div class="mui-card-content">
        <div class="mui-card-content-inner">
          <p class="price">
            市场价：
            <del>￥{{goodsinfo.market_price}}</del>&nbsp;&nbsp;销售价:
            <span class="now_price">￥{{goodsinfo.sell_price}}</span>
          </p>
          <p class="numben">购买数量：
            <numbox @getcount="getSelectedConut" :max="goodsinfo.stock_quantity"></numbox>
          </p>
          <p>
            <mt-button type="primary" size="small">立即购买</mt-button>
            <mt-button type="danger" size="small" @click="addToShopCar">加入购物车</mt-button>
          </p>
        </div>
      </div>
    </div>
    <!-- 商品参数区域 -->
    <div class="mui-card">
      <div class="mui-card-header">{{goodsinfo.goods_no}}</div>
      <div class="mui-card-content">
        <div class="mui-card-content-inner">
          <p>商品货号：{{goodsinfo.goods_no}}</p>
          <p>库存情况：{{goodsinfo.stock_quantity}}件</p>
          <p>上架时间：{{goodsinfo.add_time|dateFormat}}</p>
        </div>
      </div>
      <div class="mui-card-footer">
        <mt-button type="primary" size="large" plain @click="goDesc(id)">图文介绍</mt-button>
        <mt-button type="danger" size="large" plain @click="goComment(id)">商品评论</mt-button>
      </div>
    </div>
  </div>
</template>

<script>
import swiper from "../subcompnents/swiper.vue";
import numbox from "../subcompnents/GoodsInfo_num.vue";
export default {
  data() {
    return {
      id: this.$route.params.id,
      lunbotu: [],
      goodsinfo: {},
      ballFlag: false,
      selectedCount: 1
    };
  },
  created() {
    this.getLunbotu();
    this.getGoodsInfo();
  },
  methods: {
    getLunbotu() {
      this.$http
        .get("http://47.89.21.179:8080/api/getthumimages/" + this.id)
        .then(result => {
          if (result.body.status === 0) {
            result.body.message.forEach(item => {
              item.url =
                "https://www.baidu.com/img/bd_logo1.png?" +
                parseInt(Math.random() * 1000);
              item.img = item.src;
            });

            this.lunbotu = result.body.message;
          }
        });
    },
    getGoodsInfo() {
      this.$http
        .get("http://47.89.21.179:8080/api/goods/getinfo/" + this.id)
        .then(result => {
          if (result.body.status === 0) {
            this.goodsinfo = result.body.message[0];
          }
        });
    },
    goDesc(id) {
      this.$router.push({ name: "goodsdesc", params: { id } });
    },
    goComment(id) {
      this.$router.push({ name: "goodscomment", params: { id } });
    },
    addToShopCar() {
      //加入购物车
      this.ballFlag = !this.ballFlag;
      var goodsinfo = {
        id: this.id,
        count: this.selectedCount,
        price: this.goodsinfo.sell_price,
        selected: true
      };
      this.$store.commit("addToCar", goodsinfo);
    },
    beforeEnter(el) {
      el.style.transform = "translate(0,0)";
    },
    enter(el, done) {
      el.offsetWidth;
      //
      const ballPosition = this.$refs.ball.getBoundingClientRect();
      const badgePosition = document
        .getElementById("badge")
        .getBoundingClientRect();
      const xDist = badgePosition.left - ballPosition.left;
      const yDist = badgePosition.top - ballPosition.top;
      el.style.transform = `translate(${xDist}px,${yDist}px)`;
      el.style.transition = "all 0.5s cubic-bezier(.18,-0.39,1,.67)";
      done();
    },
    afterEnter(el) {
      this.ballFlag = !this.ballFlag;
    },
    getSelectedConut(count) {
      this.selectedCount = count;
    }
  },
  components: {
    swiper,
    numbox
  }
};
</script>

<style lang="scss" scoped>
.goodsinfo-container {
  background-color: #eee;
  overflow: hidden;

  .now_price {
    color: red;
    font-size: 16px;
    font-weight: bold;
  }
  .mui-card-footer {
    display: block;
    button {
      margin: 15px 0;
    }
  }
  .ball {
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background-color: red;
    position: absolute;
    z-index: 99;
    top: 390px;
    left: 151px;
  }
  .numben {
    div {
      display: inline;
    }
  }
}
</style>
